Trocar with improved universal seal

Details Trocar with improved universal seal Trocar with improved universal seal

1996-01-19

1997-05-13

Yasko, John D.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604256, A61M 5178

Patent

active

056287321

ABSTRACT:
A trocar containing a universal seal for sealing against surgical instruments of varying diameter to maintain insufflation in the body cavity is disclosed. The universal seal has an elastomeric sealing component with a centrally located interior region containing an aperture, and a concentrically located sealing region. The sealing region is composed of an integral laminate having an overlaying layer co-molded with an underlying layer. The overlaying layer has a hardness between about 40 Shore A Durometer Scale and about 80 Shore D Durometer Scale. The underlying layer has a hardness between about 5 Shore A Durometer Scale and about 40 Shore A Durometer Scale. The co-molded laminate balances the properties of tear resistance and elasticity which are necessary for a working universal seal, and does so without the need for resilient legs or protectors to facilitate the opening of the aperture of the seal or to prevent tearing when instruments are inserted.

REFERENCES:
patent: 5209737 (1993-05-01), Richart et al.
patent: 5300036 (1994-04-01), Mueller et al.
patent: 5308336 (1994-05-01), Hart et al.
patent: 5338307 (1994-08-01), Stephens et al.
patent: 5342315 (1994-08-01), Rowe et al.
patent: 5385553 (1995-01-01), Hart et al.
patent: 5395342 (1995-03-01), Yoon
patent: 5407433 (1995-04-01), Loomas
patent: 5411483 (1995-05-01), Loomas et al.
patent: 5456284 (1995-10-01), Ryan et al.
patent: 5520655 (1996-05-01), Davila et al.
patent: 5520663 (1996-05-01), Patterson et al.
patent: 5562632 (1996-10-01), Davila et al.

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